GB489164A - Manufacture of photographic silver halide emulsions - Google Patents
Manufacture of photographic silver halide emulsionsInfo
- Publication number
- GB489164A GB489164A GB31588/36A GB3158836A GB489164A GB 489164 A GB489164 A GB 489164A GB 31588/36 A GB31588/36 A GB 31588/36A GB 3158836 A GB3158836 A GB 3158836A GB 489164 A GB489164 A GB 489164A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- group
- malonic acid
- specifications
- groups
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/32—Colour coupling substances
- G03C7/36—Couplers containing compounds with active methylene groups
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A colour-forming substance comprises a substituted amide of malonic acid containing in the molecule a substituent which renders it fast to diffusion with respect to the binding agent of the emulsion. Such substituents are the groups described in Specifications 458,400, 465,823, 479,838, [all in Group XX], 483,000, 484,698, 489,093, 489,161, and 489,274. The substances are suitable for colour development, e.g. with aminodimethylaniline; or may be used as azo components for the process described in Specifications 387,197, [Group XX], 436,587, 488,048; and 488,853, [Group XX]; or for producing black and white and grey images. In the examples of the dyestuff components: (1) a product of the formula C6H5-NH-CO-CH2-CO-NH-C8H15 is obtained by the reaction of the semichloride of malonic acid ethyl ester with octylamine and the subsequent reaction with aniline; (2) <FORM:0489164/IV/1> is obtained by the reaction of the semichloride of malonic acid ethyl ester with para-dodecylaniline followed by reaction with para-aminobenzoic acid ethyl ester and saponification; (3) <FORM:0489164/IV/2> is obtained by the reaction of 1 mol. malonic acid diethyl ester with 2 mols. aminodiphenyl. Carboxyl groups, sulphonic acid groups and several oxy groups may be introduced to increase the solubility in water. Specifications 468,946; 475,191, and 481,501, [both in Group XX], also are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE223972X | 1936-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB489164A true GB489164A (en) | 1938-07-18 |
Family
ID=5853400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31588/36A Expired GB489164A (en) | 1936-11-02 | 1936-11-18 | Manufacture of photographic silver halide emulsions |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2186735A (en) |
| CH (2) | CH223972A (en) |
| FR (1) | FR828603A (en) |
| GB (1) | GB489164A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2463838A (en) * | 1943-02-18 | 1949-03-08 | Du Pont | Polymeric color couplers |
| US2576850A (en) * | 1945-04-26 | 1951-11-27 | Du Pont | Gelling of polymeric compounds |
| JPS5269624A (en) * | 1975-12-09 | 1977-06-09 | Fuji Photo Film Co Ltd | Photographic coupler |
| JPH0833628B2 (en) * | 1987-12-15 | 1996-03-29 | 富士写真フイルム株式会社 | Silver halide color photographic light-sensitive material |
-
1936
- 1936-11-18 GB GB31588/36A patent/GB489164A/en not_active Expired
-
1937
- 1937-10-29 US US171705A patent/US2186735A/en not_active Expired - Lifetime
- 1937-10-30 CH CH223972D patent/CH223972A/en unknown
- 1937-10-30 CH CH226465D patent/CH226465A/en unknown
- 1937-11-02 FR FR828603D patent/FR828603A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH223972A (en) | 1942-10-31 |
| US2186735A (en) | 1940-01-09 |
| FR828603A (en) | 1938-05-24 |
| CH226465A (en) | 1943-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2566271A (en) | Photographic developer containing substituted sulfonamide groups | |
| DE1000233B (en) | Color photographic material comprising at least one photographic silver halide emulsion containing an alkoxylated benzoylacetanilide coupler | |
| DE1124349B (en) | Method of sensitizing photographic emulsions and related sensitized emulsion | |
| GB489164A (en) | Manufacture of photographic silver halide emulsions | |
| DE1111505B (en) | Process for the production of colored photographic reflective or transparent images by the color development process | |
| DE893143C (en) | Process for the production of color photographic images | |
| DE1547831A1 (en) | Color photographic materials | |
| DE885197C (en) | Process for the production of purple photographic images in halogen-gelatin emulsion layers by color-forming development | |
| US2374337A (en) | Arylene diamine compounds | |
| DE1123205B (en) | Light-sensitive halogen silver emulsion with color formers for color development | |
| GB507611A (en) | Improvements in and relating to the production of coloured photographic images by colour development | |
| US2397676A (en) | Photographic developer compositions | |
| DE1137311B (en) | Color couplers for photographic color images | |
| US2728660A (en) | Salicylic acid ester and amide photographic coupler compounds | |
| DE1036053B (en) | Process for producing a color photographic image | |
| DE596104C (en) | Process for the production of diazo light images using metal salts | |
| DE1447733A1 (en) | Two component diazotype material | |
| US2108243A (en) | Photographic developer | |
| GB458400A (en) | Improvements in the production of polychrome pictures from photographic silver halide emulsions | |
| US2487034A (en) | 2.8-dihydroxynaphthalene-6-sulfonic acid as the azo component for diazotype prints | |
| JPS6161100B2 (en) | ||
| US2354552A (en) | Color photographic image | |
| GB490517A (en) | Production of black-and-white photographic pictures | |
| US2707681A (en) | 8-aminolilolidines and 9-aminojulolidines and their addition salts and developer compositions containing the same | |
| US2396396A (en) | Production of colored photographic images |